 | 1831 - Страниц: 896
...twenty pounds pressure, I conceive the danger of explosion nearly as great, as with those working at a pressure of one hundred and fifty pounds to the square inch, and in some instances greater, where the construction of the boilers is not adapted to carry more than... | |
 | Eli Bowen - 1855 - Страниц: 444
...receive in consequence. 6. There must be a mercurial guage affixed to the machine, with index-rod, showing the steam pressure above fortyfive pounds per square inch. 7. The engine to be delivered complete for trial at the Liverpool end of the railway, not later than the 1st of October,... | |
 | Samuel Smiles - 1857 - Страниц: 576
...tons, then it might be put on only four wheels. The Company to be at liberty to test the boiler, &c., by a pressure of one hundred and fifty pounds to the...7. The engine must be delivered, complete and ready for TS 276 LIFE OF GEORGE STEPHENSON. [CHAP. MI. trial, at the Liverpool end of the railway, not later... | |
 | Samuel Smiles - 1857 - Страниц: 550
...tons, then it might be put on only four wheels. The Company to be at liberty to test the boiler, &c., by a pressure of one hundred and fifty pounds to the...A mercurial gauge must be affixed to the machine, • Observations on the comparative Merits of Locomotive and Fixed Engines. By Robert Stephcnson and... | |
 | Samuel Smiles - 1858 - Страниц: 590
...tons, then it might be put on only four wheels. The Company to be at liberty to test the boiler, &c., by a pressure of one hundred and fifty pounds to the...7. The engine must be delivered, complete and ready for trial, at the Liverpool end of the railway, not later than the 1st of October, 1829. 8. The price... | |
 | Charles C. B. Seymour - 1858 - Страниц: 606
...tons, then it might be put on only four wheels. The company to be at liberty to test the boiler, etc., by a pressure of one hundred and fifty pounds to the...7. The engine must be delivered complete and ready for trial at the Liverpool end of the railway not later than the 1st of October, 1829. 8. The price... | |
 | Samuel Smiles - 1859 - Страниц: 384
...tons, then it might be put on only four wheels. The Company to be at liberty to test the boiler, &c., by a pressure of one hundred and fifty pounds to the...7. The engine must be delivered, complete and ready for trial, at the Liverpool end of the railway, not later than the 1st of October, 1829. 8. The price... | |
 | Charles Cist - 1859 - Страниц: 434
...of seven gallons in an inconceivably short space of time. The safety valve on the machine indicates a pressure of one hundred and fifty pounds to the square inch. There are ten of these factories here, employing eighty hands ; value of product, one hundred and seventy-six... | |
 | Vermont. Railroad Commissioner - 1860 - Страниц: 140
...tons then it might be put on only four wheels. The company to be at liberty to test the boiler, etc., by a pressure of one hundred and fifty pounds to the square inch. 6. A mercurial guage must be affixed to the machine, showing the steanv pressure above forty-five pounds per square... | |
 | 1861 - Страниц: 656
...made tight, and a vacuum produced by an air pump, and the creosote injected into the pores of the wood by a pressure of one hundred and fifty pounds to the square inch, when as much ae eighteen pounds of creosote has been forced into a cubic foot. When ten pounds of creosote... | |
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A mercurial gauge must be affixed to the machine, showing the steam pressure above forty-five pounds per square inch. 7. The engine must be delivered, complete and ready for trial, at the Liverpool end of the railway, not later than the 1st of October,... 
